centennial
cen·ten·nial
noun
1.
the 100th anniversary (or the celebration of it)
adjective
1.
Origin
From Late Latin centennium (“period of 100 years, century”) + English -al (suffix forming adjectives and nouns).
Related words
Word family
Broader terms
Pertaining to
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.